Pipe-cutter.



No. 859,432. PATENTED JULY 9, 1907.

W. H. E. da E. GHARPIER PIPE CUTTER. AEPLIOATIQN FILED N@v. 12.19oe.

2 SHEETS-SHEET 1.

No. 859,432. PATENTED JULY 9, 1907.

W. H. E. 6; E. CHARPIER PIPE CUTTER. APPLIOATION'HLED Nov.12. 190e.

2 SHEETS-SHEET 2.

. a specification.

`tain peculiarities of the WALTER H. E'. oHAEPiEE AND EDWARD CHARPIER,OF CHICAGO, lLLlNOlS.

PIPE-CUTTER.

' Specification of Letters Patent.

Patented July 9, 1307.

Application tiled November 12,1906. Serial No. 342,993.

To all whom t may concern: n

Be it known that we, WALTER H. E. CHARPIER and EDWARD CHARPIER, citizensof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements ina Pipe-Cutter, of which the following is This invention relates toimprovements in an apparatus to be used for cutting pipes, and itconsists in cer construction, novel arrangement, and operation of thevarious parts thereof, as will be hereinafter more fully set forth andspecifically claimed.

The principal object of our invention is to provide a pipe cutter, whichshall be simple and inexpensive in construction, strong, durable andeffective in operation, and so made as to be adapted for cutting pipesof different sizes.

A further object ofthe invention is to provide means for feeding oradjusting the bit or knife of the cutter in the operation of cutting thepipe.

Various other objects and advantages of the invention will be disclosedin the subjoined description and explanation.

In order to enable others skilled in the art to which our inventionpertainsfto make and use the same, we

will now proceed to describe it, referring to the accompanying drawings,in which- Figure l is a side view in elevation f a pipe cutter embodyingour invention, showing the tion on'a section of pipe and ready for use.Fig. 2 is a plan view thereof. Fig. 3 is a sectional view taken on line3, 3 of Fig. looking in the direction indicated by the arrows. Fig. 4 isa view partly in section and partly in elevation taken on line 4, 4.0iFig. 3 looking in the direction indicated by the arrows. Fig. 5 is across-sectional view of a portion of the feeding device for the knife orbit taken on line 5, 5 of Fig. ,l;-and- Fig. 6 is a longitudinalsectional view thereof taken en line 6, of Fig. l'.

Like numerals of reference, refer t0 corresponding v parts throughoutthe different views of the drawings.

The reference numeral l0 designates the pipe holder or sleeve, which ismade of metal and of any suitable and has located near one of its ends aseries of radially disposed screw bolts ll, which are adapted, whenscrewed up, to engage the pipe l2 seas to center and firmly hold itinthe sleeve l0 or pipe holder.4 That end of the sleeve l() opposite thatin which the bolts ll are located7 13, for the purpose to be presentlyexplained. Near its middle, the sleeve l0 is posed grooves on the innersurface of the handle carparts in posirying split collar 16, whichconsists of two semi-circular members 17 and 18, which have at each oftheir ends outwardly extending aportured lugs or ears l9 to receivebolts 20, used for securing the members 17 and 1S togetheri Thesemembers are formed on their inner surfaces at their ends adjacent to thefront end of the sleeve l0 with a shouldered groove 2l, to receive andengage an annular flange 22 on the inner end of a ratchet The ratchetcollar 23 is provided on its upper portion with a radially and outwardlyextending tubular part or casing 25, the outer end of which isinternally screw threaded to engage external screwthreads onan'apertured plug or nut 26, the apertur'e of which is screw-threaded toengage threads on the bit or knife-feedingrod 27, which is provided atits outer end with a handle 28 used f or turning the same. The innermanner, or so that said rod may be turned without turning the bit orknife.

As is clearly-shown in Figs. 5 and 6, the tubular cas ing has inovablylocated therein a block 33, through which the bit or knife 30 isextended, and which is prevented turning in the block by means of a key34, dr spline. The inner portion of the block 33 is hollow, as showninFig. 6, to receive the inner portion of the feeding rod 27, and saidblock may be fixed in position by means of a set screw 35 located in thecasing 25 and preferably at one side thereof.

One of the members of the split collar 16, for example the onedesignated bythe reference numeral 18, is provided with a radially andoutwardly projecting hollow extension 36, in which is fitted one end ofa handle 37 used for operating the cutter. i Atits inner portion, theextension 36 is enlarged as at 38for the purpose of strengthening theparts, Aand said enlarged portion has on its front surface or thatsurface thereof adjacent to the recessed end of the sleeve l0 a'lug 39,which is provided with an opening 40, in wh ich is located aspringpressed pawl 4l, which engages the teeth 24- of the ratchet collar23, as will `be clearly understood by reference to Figs; 2 and 3 of thedrawings.

From the foregoing and by reference to the drawings it will be seen andreadily understood that the split collar 16, which `carries theoperating the sleeve, with the grooves 15 on the inner surace of thecollar 16, and by reason oi the engagementA o the 'flange 22 on theratchet collar, with the groove 21 on the inner surface oi the spilt orhandle carrying collar. It will also beunderstood that the ratchetcollar and handle carrying collar will have independent movement oi eachother in one direction, but will be caused to move in unison or in thesame direction when the pawl 41 engages the teeth 24 of the ratchetcollar.

The operation of the device is simple and as follows:- The pipe 12, tobe cut, may be firmly held in a horizontal position by means oi a vise(not shown) or otherwise, and it large enough, to fit closely in thesleeve 10, the latter may be placed thereon and held in position bymeans of wedges 42 inserted in the recesses 13 in one end of the sleeve10 and by means oi the screw-bolts 11 ou its other end, which should betightened up so as to engage the pipe. 1t the pipe to be cut isconsiderably smaller than the sleeve 10, a shim 43 may be placed aroundthe pipe and interposed between the same and the sleeve 10, as isclearly shown in Figs. 1, 3 and 4 oi the drawings, in which figures Wehave shown the shim as being cylindrical and having threeAequi-distantly disposed longitudinal ribs 44 to rest against the innersurface oi the sleeve 10, and with a similar number ot recesses 45 onits inner surface to receive the wedges 42, which are interposedbetweenthe shim and pipe. As shown in Fig. 4, the ribs 44 oi the shimare oi the same length as the sleeve 10, and each has an opening 46 iorthe passage oi the screw-bolts 11, which, as betere stated, are used tosecure the pipe in position. When "the device is thus mounted andsecured on the pipe to be cut, it is apparent that the bit or knife maybe adjusted so as to impinge with its cutting end against the outersurface oi the pipe by turning the screw-rod 27 in -o the pipe, whichincision may theJ proper direction, when by raising the operating handle37 the ratchet'collar 23, which carries the knife or bit, Will be causedto turn around the pipe by reason o the engagement oi the pawl 41 on thesplit collar with the teeth 24 oi the ratchet collar, thus causing thekniie or bit 30 to make a circular incision in the outer surface y bedeepened until the pipe is severed by simply turning the eeding rod 27in Jthe proper direction.

Having thus fully described our invention, what We claim as new, anddesire to secure by Letters-Patent, issln a pipe cutter, the combinationwith a sleeve adapted to surround the pipe to be eut and having in oneof its ends a series of longitudinally extending recesses and 0n itsouter. periphery a circumferential rib, of means interpos'ed between thepipe and sleeve, a series of radially dis-- posed screwlbolts located inthe sleeve near one of its ends, a handle-carrying-collar rotatablymounted on the sleeve and consisting of two semi-circular memberssecured together at their ends, each of said members inner periphery agroove to receive a portion of the circumferential rib on the sleeve andsaid members havingr near one of their ends a shouldered groove, aratehetcollai` rotatably mounted on the sleeve and having at one of itsends an annular flange the first-named collar, a radially extendingcasing located on the ratchet-collar, an apertured block movably locatedin one end of said casing, a feeding rod in screw engagement with theouter end thereof, a knife or bit located in the aperture of said blockand swiveled at its inner end within the casing to the feeding rod, anda spring-pressed paw] mounted on the handle-carrying-collar to engagethe teeth of the ratchet-collar, substantially as described.

'ALTER H. E. CHARPIER. EDWARD CHARPIER.

Witnesses ALBERT MILLER, EDWARD SEMMLER.

having in its.

to engage the shouldered groove of

